EP0371920A2 - Fermeture à vis avec bande de garantie - Google Patents

Fermeture à vis avec bande de garantie Download PDF

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Publication number
EP0371920A2
EP0371920A2 EP89810883A EP89810883A EP0371920A2 EP 0371920 A2 EP0371920 A2 EP 0371920A2 EP 89810883 A EP89810883 A EP 89810883A EP 89810883 A EP89810883 A EP 89810883A EP 0371920 A2 EP0371920 A2 EP 0371920A2
Authority
EP
European Patent Office
Prior art keywords
cap
section
screw cap
cap according
guarantee band
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89810883A
Other languages
German (de)
English (en)
Other versions
EP0371920B1 (fr
EP0371920A3 (en
Inventor
Werner R. F. Stibal
Franz Thomas Bartl
Hans-Werner Breuer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crown Cork AG
Original Assignee
Crown Cork AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Crown Cork AG filed Critical Crown Cork AG
Priority to AT89810883T priority Critical patent/ATE91264T1/de
Publication of EP0371920A2 publication Critical patent/EP0371920A2/fr
Publication of EP0371920A3 publication Critical patent/EP0371920A3/de
Application granted granted Critical
Publication of EP0371920B1 publication Critical patent/EP0371920B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3423—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
    • B65D41/3447—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/30—Tamper-ring remaining connected to closure after initial removal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/35—Vertical or axial lines of weakness

Definitions

  • the invention relates to a screw cap made of plastic material for closing a container mouth according to the preamble of claim 1.
  • Such screw caps have a guarantee function in that a first removal of the cap is indicated by tearing off the guarantee band.
  • Screw caps with mechanically locking guarantee bands have been known and used for a long time.
  • the guarantee band is divided into two separate, semicircular parts, both of which have grown over reinforced webs at the lower edge of the cap.
  • this two-part design involves the risk that the two parts receive too great a circumferential elasticity, so that the cap can be unscrewed without tearing off the band.
  • the guarantee band is divided into two arcuate sections which are separated from one another by a vertical slot and by a vertical predetermined breaking point. There is also a tearing of the vertical predetermined breaking point not guaranteed in every case, so that the user may have to manipulate by hand in order to bring about a complete loosening of the band.
  • the tear-off resistance between the cap and the band is increased to a fraction of the circumference and the band is weakened by an oblique predetermined tear line.
  • the guarantee band can be integrally and firmly connected to the lower edge of the cap over a relatively large circumferential section, this section having only a support and retention function and allowing the cap to be placed symmetrically on the bottle, but does not actually perform a guarantee function.
  • the guarantee function is exercised by the complementary section, which is not or only tearably connected to the lower edge of the cap. This section can be made relatively short, so that when the container mouth is later re-closed, the there is that the torn guarantee tape is pushed between the threads.
  • the guarantee band is continuously formed over its entire circumference, which means that the necessary circumferential tension is achieved when it is opened for the first time. This ensures that the predetermined breaking point tears on the guarantee tape.
  • the firmly connected section of the guarantee band extends particularly advantageously over an angle of more than 90 ° and less than 270 °, preferably from 120 ° to 260 °.
  • the complementary section of the guarantee tape which is not firmly connected to the cap, can be connected to the lower edge of the cap via tear-off webs. However, two webs can be sufficient to hold the complementary section in place.
  • the retaining elements are preferably arranged on the separately formed complementary section of the guarantee band, but can also extend at least partially over the firmly connected section.
  • the retaining elements can be designed as deformable tongues, e.g. according to applicant's EP-A-281 514.
  • the retaining elements can also be designed as individual beads, as shown in US-A-4,305,516 or in US-A-4,744,479. It would even be conceivable that the only retaining element is a circumferential or almost circumferential inner bead on the guarantee band.
  • a material recess is arranged next to the predetermined breaking point on the guarantee band.
  • This material recess can be designed, for example, as a vertical slot which extends over part of the guarantee band. Instead of a slot, however, only one notch could also be arranged in the guarantee band.
  • the material recess takes material expansion open when screwing on for the first time and thus relieves the predetermined breaking point.
  • At least one inwardly directed support lug is arranged on the lower cap edge in the region of the detachable complementary section.
  • This support lug prevents the complementary section of the guarantee band, which is connected to the edge of the cap only by a few webs, from being pushed into the cap opening when it is first put on.
  • the upper edge of the guarantee band is rather supported on the nose, so that the tear-off bars are prevented from tearing when the cap is put on.
  • Figure 1 shows a screw cap 1 made of plastic material with an internal thread 5, which is intended to close a container mouth 2 with an external thread 6.
  • Such screw caps are preferred for closing Bottles with soft drinks are used, which are usually reusable glass bottles with a standardized bottle mouth.
  • the guarantee band 3 consists of a circumferential section 9 which is firmly connected to the lower edge of the cap and of a complementary section 10 which can be torn off or not firmly connected 2 and when unscrewing the cap for the first time, cause the necessary tensile force to tear the guarantee tape.
  • the cross section of the screw cap can be seen from FIGS. 2 to 4.
  • the screw cap 1 itself can have an orifice seal 16 or another sealing system such as e.g. have an inserted sealing washer.
  • the cross-sectional shape of the screw cap and the guarantee strip is selected such that it can be manufactured in an axially opening injection molding tool.
  • FIG. 5 shows the length of the peripheral section 9 firmly connected to the lower edge 15. In the exemplary embodiment, this extends over an angle alpha of approximately 240 °.
  • This section as can be seen from FIG. 2 on the right side, is connected to the lower edge 15 practically in its entire wall thickness and therefore cannot be torn off.
  • the complementary section 10 which is not firmly connected to the lower edge of the cap, accordingly extends over an angle Beta of approximately 120 °.
  • the cross-sectional shape of the guarantee band in this section can be seen from FIG. 2, left side.
  • the guarantee tape is approximately wedge-shaped at the top and connected to only two tear-off webs 12 and 12 'with the lower edge of the cap.
  • Inwardly directed tongues 7 serve as retaining elements, under each of which a support bead 8 is arranged.
  • the tongues 7 are bent upwards and thus slide over the bead 4 at the bottle mouth. Bending of the tongues 7 downward is prevented by the support beads 8, so that the retaining elements once engaged under the bead 4 can no longer be pushed over the bead without tearing the guarantee band 3.
  • a predetermined breaking point 11 is arranged on the guarantee band.
  • this consists of a horizontal web 17 which connects the fixed section 9 and the loose complementary section 10 to one another.
  • a material recess 13 in the form of a slot is provided directly next to the section 9. This slot extends only about half of the guarantee bandwidth, so that there is no complete interruption of the guarantee band. Instead of the slot, it would also be possible to arrange only one notch with which the wall thickness of the guarantee tape is greatly reduced. The material recess 13 relieves the predetermined breaking point 11 without significantly reducing the disproportionately large expansion forces when unscrewing for the first time.
  • FIG. 3 also shows the support lug 14, which is arranged on the inside of the cap in the region of the loose complementary section 10.
  • This support nose which is inclined slightly obliquely downwards, prevents the loose complementary section 10 from being able to slide into the cap opening when the cap is screwed on for the first time.
  • the tear-off webs 12 and 12 ' are relieved.
  • FIG. 3 shows the arrangement of the retaining elements 7, which extend over an angle delta of approximately 180 °.
  • Three of the retaining elements lie on the loose complementary section 10, while two of the retaining elements 7 'are already arranged on the fixed peripheral section 9.
  • the first of the retaining elements lies approximately diametrically opposite the predetermined breaking point 11.
  • the two tear-off webs 12 and 12 ' lie within an angle gamma of less than 90 °, starting from the predetermined breaking point 11.
  • the number of retaining elements 7, the tear-off webs 12 and the angle of the individual sections can obviously be adapted to the respective circumstances. In certain cases it would also be conceivable to provide more than one predetermined breaking point 11 on the guarantee band.
  • the cross-sectional shape of the guarantee band can also be adapted to the individual case.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Package Frames And Binding Bands (AREA)
  • Wrappers (AREA)
  • Cartons (AREA)
EP89810883A 1988-11-28 1989-11-20 Fermeture à vis avec bande de garantie Expired - Lifetime EP0371920B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89810883T ATE91264T1 (de) 1988-11-28 1989-11-20 Schraubkappe mit garantieband.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4411/88 1988-11-28
CH441188 1988-11-28

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP91108998A Division EP0460557B1 (fr) 1988-11-28 1989-11-20 Fermeture à vis avec bande de garantie
EP91108998.5 Division-Into 1991-06-03

Publications (3)

Publication Number Publication Date
EP0371920A2 true EP0371920A2 (fr) 1990-06-06
EP0371920A3 EP0371920A3 (en) 1990-11-22
EP0371920B1 EP0371920B1 (fr) 1993-07-07

Family

ID=4275637

Family Applications (2)

Application Number Title Priority Date Filing Date
EP89810883A Expired - Lifetime EP0371920B1 (fr) 1988-11-28 1989-11-20 Fermeture à vis avec bande de garantie
EP91108998A Expired - Lifetime EP0460557B1 (fr) 1988-11-28 1989-11-20 Fermeture à vis avec bande de garantie

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP91108998A Expired - Lifetime EP0460557B1 (fr) 1988-11-28 1989-11-20 Fermeture à vis avec bande de garantie

Country Status (4)

Country Link
EP (2) EP0371920B1 (fr)
AT (2) ATE91264T1 (fr)
DE (2) DE58904871D1 (fr)
ES (2) ES2045988T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4201997C1 (fr) * 1992-01-25 1992-12-10 Stella Kunststofftechnik Gmbh, 6228 Eltville, De
EP0891929A2 (fr) * 1997-07-15 1999-01-20 Mouldtec Kunststoff GmbH Capuchon à vis avec bande de garantie
WO2002016217A1 (fr) 2000-08-23 2002-02-28 Bericap Bouchon comportant des moyens de blocage de la deformation radiale de la bague d'inviolabilite

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4217539C2 (de) * 1992-05-27 1995-01-05 Frank Schellenbach Verschlußkappe
DE4221004A1 (de) * 1992-06-26 1994-01-05 Mouldtec Pvg Ag Meilen Verschlußkappe für Getränkeflaschen
EG21314A (en) * 1992-07-16 2000-10-31 Driutt Rodney Malcolm Tamper evident closure
HU216148B (hu) * 1995-07-21 1999-04-28 Nord Est Developpement Műanyag zárókupak garanciagyűrűvel és tömítőelemekkel, zárókupakból és edényből álló egység, valamint eljárás a zárókupak előállítására
FR2744988B1 (fr) * 1996-02-21 1998-04-10 Nord Est Dev Bouchon en matiere plastique comportant une bague d'inviolabilite, ensemble bouchon/recipient, procede de fabrication d'un tel bouchon et procede de realisation d'un tel ensemble bouchon/recipient
AUPO788597A0 (en) 1997-07-14 1997-08-07 Closures And Packaging Services Limited Closure
IT1300020B1 (it) 1998-05-08 2000-04-04 Sacmi Capsula a vite in materiale plastico con anello di garanzia.
DE19827242A1 (de) 1998-06-18 1999-12-30 Mouldtec Kunststoff Gmbh Verschlußkappe, insbesondere Schraubkappe aus Kunststoff mit Garantieband
DK1397296T3 (da) 2001-06-18 2005-12-19 Bericap Holding Gmbh Skruehætte med sikringsbånd
JP5007893B1 (ja) * 2011-06-08 2012-08-22 村山 哲夫 ピルファープルーフキャップ
BR302014001174S1 (pt) 2013-09-18 2015-05-12 Bericap Configuração ornamental aplicada em tampa
FR3015442B1 (fr) 2013-12-24 2016-02-05 Bericap Dispositif de bouchage articule avec indicateur de premiere ouverture
USD833278S1 (en) 2014-09-03 2018-11-13 Bericap Closure for a container

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2439414A1 (de) * 1974-08-16 1976-03-04 Hohenzollern Huettenverwalt Kunststoffverschluss fuer flaschen und behaelter
FR2457813A1 (fr) * 1979-05-31 1980-12-26 Grussen Jean Capsule a vis en matiere plastique pour bouteilles
US4278180A (en) * 1980-01-24 1981-07-14 Aluminum Company Of America Container closure with breakable annular ring
EP0154603A1 (fr) * 1984-02-06 1985-09-11 Crown Obrist Ag Capsule de bouchage en matière plastique
US4550843A (en) * 1982-12-14 1985-11-05 Maxcap, Inc. Bottle caps
DE3531508A1 (de) * 1985-09-04 1987-03-12 Saier E Kunststoffwerk Gmbh Schraubverschlusskappe, insbesondere aus kunststoff, fuer flaschen, becher od. dgl.
EP0228618A2 (fr) * 1985-12-19 1987-07-15 Pharma-Gummi Wimmer West GmbH Fermeture de bouchage inviolable pour récipient
US4744479A (en) * 1986-07-11 1988-05-17 Interplastic Ag Tamper indicating closure for bottles and the like
WO1988005754A1 (fr) * 1987-01-30 1988-08-11 Walter Wiedmer Ag Plastikform Fermeture avec anneau de garantie pour recipients
EP0281514A1 (fr) * 1987-02-26 1988-09-07 Crown Cork AG Capsule de fermeture à bande de garantie

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2439414A1 (de) * 1974-08-16 1976-03-04 Hohenzollern Huettenverwalt Kunststoffverschluss fuer flaschen und behaelter
FR2457813A1 (fr) * 1979-05-31 1980-12-26 Grussen Jean Capsule a vis en matiere plastique pour bouteilles
US4278180A (en) * 1980-01-24 1981-07-14 Aluminum Company Of America Container closure with breakable annular ring
US4550843A (en) * 1982-12-14 1985-11-05 Maxcap, Inc. Bottle caps
EP0154603A1 (fr) * 1984-02-06 1985-09-11 Crown Obrist Ag Capsule de bouchage en matière plastique
DE3531508A1 (de) * 1985-09-04 1987-03-12 Saier E Kunststoffwerk Gmbh Schraubverschlusskappe, insbesondere aus kunststoff, fuer flaschen, becher od. dgl.
EP0228618A2 (fr) * 1985-12-19 1987-07-15 Pharma-Gummi Wimmer West GmbH Fermeture de bouchage inviolable pour récipient
US4744479A (en) * 1986-07-11 1988-05-17 Interplastic Ag Tamper indicating closure for bottles and the like
WO1988005754A1 (fr) * 1987-01-30 1988-08-11 Walter Wiedmer Ag Plastikform Fermeture avec anneau de garantie pour recipients
EP0281514A1 (fr) * 1987-02-26 1988-09-07 Crown Cork AG Capsule de fermeture à bande de garantie

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4201997C1 (fr) * 1992-01-25 1992-12-10 Stella Kunststofftechnik Gmbh, 6228 Eltville, De
EP0891929A2 (fr) * 1997-07-15 1999-01-20 Mouldtec Kunststoff GmbH Capuchon à vis avec bande de garantie
EP0891929A3 (fr) * 1997-07-15 1999-02-03 Mouldtec Kunststoff GmbH Capuchon à vis avec bande de garantie
WO2002016217A1 (fr) 2000-08-23 2002-02-28 Bericap Bouchon comportant des moyens de blocage de la deformation radiale de la bague d'inviolabilite
FR2813288A1 (fr) * 2000-08-23 2002-03-01 Rical Sa Systeme d'inviolabilite pour un bouchon comportant des moyens de blocage de la deformation radiale de la bague d'inviolabilite lors du montage

Also Published As

Publication number Publication date
ATE96110T1 (de) 1993-11-15
EP0371920B1 (fr) 1993-07-07
EP0371920A3 (en) 1990-11-22
DE58905985D1 (de) 1993-11-25
ES2045988T3 (es) 1994-01-16
DE58904871D1 (de) 1993-08-12
EP0460557B1 (fr) 1993-10-20
EP0460557A3 (fr) 1991-12-18
EP0460557A2 (fr) 1991-12-11
ATE91264T1 (de) 1993-07-15
ES2041441T3 (es) 1993-11-16

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